130997 has 4 divisors (see below), whose sum is σ = 132396. Its totient is φ = 129600.

The previous prime is 130987. The next prime is 131009. The reversal of 130997 is 799031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128881 + 2116 = 359^2 + 46^2 .

It is a cyclic number.

It is not a de Polignac number, because 130997 - 2⁴ = 130981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548 + ... + 749.

It is an arithmetic number, because the mean of its divisors is an integer number (33099).

2¹³⁰⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

130997 is a deficient number, since it is larger than the sum of its proper divisors (1399).

130997 is a wasteful number, since it uses less digits than its factorization.

130997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 130997 is about 361.9350770511. The cubic root of 130997 is about 50.7871430873.

The spelling of 130997 in words is "one hundred thirty thousand, nine hundred ninety-seven".